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NULL Pointer Dereference Affecting libxml2 package, versions <2.9.10+dfsg-5ubuntu0.20.04.6

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.1% (40th percentile)
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NVD
6.5 medium
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SUSE
5.9 medium
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Red Hat
5.9 medium

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  • Snyk ID SNYK-UBUNTU2004-LIBXML2-5420408
  • published 12 Apr 2023
  • disclosed 24 Apr 2023
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Introduced: 12 Apr 2023

CVE-2023-28484 Open this link in a new tab
CWE-476 Open this link in a new tab

How to fix?

Upgrade Ubuntu:20.04 libxml2 to version 2.9.10+dfsg-5ubuntu0.20.04.6 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

In libxml2 before 2.10.4, parsing of certain invalid XSD schemas can lead to a NULL pointer dereference and subsequently a segfault. This occurs in xmlSchemaFixupComplexType in xmlschemas.c.